Random resets after cpu+GPU upgrade (Arch) (lemmy.world)

submitted 2 months ago* (last edited 2 months ago) by Cort@lemmy.world to c/linuxquestions@lemmy.zip

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Upgraded to amd 5900xt & 7090xt and am experiencing random crashes. No overclock, no xmp/docp, no pbo (not defaults cause Asus has pbo on by default). 1000w seasonic PSU.

Whole screen goes green and reboots. Happens in heavy gaming, watching YouTube and even at idle.

Journalctl lists an mc5 hardware error suggests the cpu, but none of the troubleshooting has fixed it.

BIOS updated, c-states disabled, triple checked all settings, fully up to date Arch, but still randomly crashes.

Where do I go from here?

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[-] just_another_person@lemmy.world -3 points 2 months ago* (last edited 2 months ago)

Mc5 hardware error

Dafuq you think that is, son?

*Edit: post logs, ya baby ass bitch

[-] Cort@lemmy.world 1 points 2 months ago* (last edited 2 months ago)

why the fuck would i ask if i already knew?

[Hardware Error]: System Fatal error.

[Hardware Error]: CPU:12 (19:21:2) MC5_STATUS[-|UE|MiscV|AddrV|PCC|TCC|SyndV|-|-|-]: 0xbea00000>

[Hardware Error]: Error Addr: 0x00007fb9e0b2ab0c

[Hardware Error]: IPID: 0x000500b000000000, Syndrome: 0x000000004d000000

[Hardware Error]: Execution Unit Ext. Error Code: 0

[Hardware Error]: cache level: RESV, tx: GEN, mem-tx: GEN

[Hardware Error]: System Fatal error.

[Hardware Error]: CPU:3 (19:21:2) MC5_STATUS[-|UE|MiscV|AddrV|PCC|TCC|SyndV|-|-|-]: 0xbea000000>

[Hardware Error]: Error Addr: 0x01ffffffc0a06ae4

[Hardware Error]: IPID: 0x000500b000000000, Syndrome: 0x000000004d000000

[Hardware Error]: Execution Unit Ext. Error Code: 0

[Hardware Error]: cache level: RESV, tx: GEN, mem-tx: GEN

[Hardware Error]: System Fatal error.

[Hardware Error]: CPU:24 (19:21:2) MC5_STATUS[-|UE|MiscV|AddrV|PCC|TCC|SyndV|-|-|-]: 0xbea00000>

[Hardware Error]: Error Addr: 0x01ffffffb895f8b4

[Hardware Error]: IPID: 0x000500b000000000, Syndrome: 0x000000004d000000

[Hardware Error]: Execution Unit Ext. Error Code: 0

[Hardware Error]: cache level: RESV, tx: GEN, mem-tx: GEN

this post was submitted on 17 Jul 2026

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